Ophthalmic lens mount



L. J. PAGE 2,062,761

OPHTHALMI C LENS MOUNT Filed Dec. 14, 1933 Patented Dec. 1, 1936 UNITED STATE$ PATENT OFFICE OPHTHALMIC LENS MOUNT Louis lTohn Page, Hollis, N. Y.

Application December 14, 1933, Serial No. 702,320

2 Claims.

The invention relates mainly to the attachment of the rimless type of ophthalmic mountings. One of the objects of my invention is to facilitate the means of attaching ophthalmic mountings to lenses. Another object is to provide attaching means whereby the mounting will adjust itself automatically to various curves, thicknesses, prisms, cylinders, concave, convex, and other odd surfaces and shapes, without the labors of bending, filing, and crimping, as is required of the present types of mountings. A further object is to provide an attachment whereby the mounting will not be rigid in relation to the lens but will flex in all meridians. The above objects and features of construction, design, and arrangement will be further described and explained in the appended claims.

Referring to the drawing.

Figure 1 is a front elevation of a part of a pair of spectacles showing the features of my invention; namely,the lens straps and shoes.

Figure 2 is an enlarged partial front view showing the mounting attached to a lens.

Figure 3 is an enlarged end elevation showing both straps and shoes.

Figure 4 is a front view of the mounting relaxed, before being attached to a lens.

Figure 5 is an enlarged partial perspective view of the attached mounting.

The arrangement as shown in Figure 1 shows bridge 5 connecting two lenses I through the means of studs 8. The temples 3 are connected to end-pieces 2 and attached to lenses l by straps 6. The lens clamp 2, stud 2, or end-piece 2, is made up of the shoe 9, which contacts the edge of the lens I; the suspension strap-arm l which connects shoes 9 with strap 6 which is held to the lens by a screw connecting the two straps 6 and 6' through an opening in the lens.

In Figure 3 are shown the two shoes 9, each connected to its respective strap 6 by means of the suspension-arm l.

In Figure 5 the shoes 9 show their position when straps 6 are held in position on the lens I.

In the view of Figure 4 the straps 6, strap suspension-arm l, and shoes 9 are shown in their relaxed positions. By pressure on the arms 9 in the direction of the hole [9 in the lens, the straps 6 are placed so that the openings II in the straps and the lens hole It), are in position to accept the screw or rivet which in turn holds the two straps firmly together.

The construction of this new type of strap is as follows: for each side of the lens there is provided a loop of resilient material with two nodes,

these nodes being at substantially right angles one to the other. The first of these nodes is oblong in shape and designed to rest against one half of the edge of the lens.

shape, is designed to rest against one surface of the lens. The node which rests against this surface of the lens is sufficiently long so that the furthermost portion of the node extending toward the center of the lens extends beyond the usual point where the lens is drilled for screws. A strap or plate is attached to this node at the furthermost portion extending toward the center of the lens. In addition this strap is composed of flexible material so that it may be bent to conform to the shape of the lens. The first node mentioned being of spring wire or other similar resilient material may be bent to conform to the edge of the lens, and the shape of these nodes may be changed so as to provide for. thicker or thinner lenses or to provide more wireso as to make the second node extend further toward the center of the lens.

From the construction it can be seen that the shoes 9 can flex sidewise in opposite directions from eachother in the plane of the edge of the lens. It can also be seen that the strap suspension arms I can flex in the plane of the surface of the lens, producing pressure by the shoes 9 against the edge of the 1ens,in turn holding the end-piece 2 firmly against the edge of the lens. It should be noted that the straps 6 and 6' are in no way attached or connected at either end in a fixed position or a fixed distance from each other, as is the case of the straps on mountings now in use. This construction allows the straps 6 and 6' to converge or diverge in any direction or meridian. It also allows one strap to set further in on the lens than the other strap as is the case when the opening is not perpendicular to the surface of the lens. It also allows the widening of the shoes 9 to accommodate thicker edge lenses as in the case of the concave type, and yet permits the straps 6 and 6' to fit the narrower width of the lens where the opening is made. In the convex type lens the shoes 9 will be close together and the straps 6 and 6' will be further apart as the thickness of the lens at the opening will be greater than at the edge. In the case of a prism the upper ends of the straps 6 and 6 will be closer or further apart than the lower ends depending on whether the prism is base up or base down.

In conclusion, from the above descriptions and The second ofthese nodes, which may be of any convenient shape; the one shown in the drawing being diamond specifications it can be seen that I am able to present a new and improved ophthalmic mounting for rimless spectacles or eyeglasses. This mounting, due to its flexibility, will retain its shape and cause less strain on the lens when undue pressure is applied to same.

My invention can be used on difierent types of ophthalmic mountings, such as end-pieces, bridges, and box-studs, of the spectacle or eyeglass varieties.

I claim:

1. In a lens mounting two wire loops, said loops and their dependent parts conjointly forming a complete clamp for a lens, each of said loops being provided with two nodes, these nodes extending substantially at right angles one to the other, one of these nodes being oblong in shape for engaging the edge of the lens and capable of expansion or contraction to accommodate different lens thicknesses, and also allowing the other node to extend further towards the center of the lens, the other of the nodes resting against the face surface of the lens with a plate suspended from its point of furthermost entry upon the lens, the plate of one of these nodes being drilled to receive a screw, the plate of the corresponding node on the reverse side of the lens being drilled and tapped so as to permit the drawing of the two plates tightly together upon the lens by means of a screw, and an end piece on the edge of the lens with which the terminal ends of the loops are engaged.

2. In a lens mounting two wire loops, said loops and their dependent parts conjointly forming a complete clamp for a lens, each of said loops being provided with two nodes, these nodes extending substantially at right angles one to the other, one of these nodes which engages the edge ofthe lens being capable of expansion or contraction to accommodate different lens thicknesses, and also allowing the other node to extend further towards the center of the lens, the other of the nodes resting against the face surface of the lens with a plate suspended from its point of furthermost entry upon the lens, the plates of the two corresponding nodes on either side of the lens being provided with fastening means so as to permit the drawing of the two plates tightly together upon the lens, and an end piece on the edge of the lens with which the terminal ends of the loops are engaged.

LOUIS JOHN PAGE. 

